Buggy code:
public class MainParser { private FlexiCommandParser flexiCommandParser ; private NormalCommandParser normalCommandParser ; public MainParser ( ) { } public TokenizedCommand parse ( String input ) { } private Boolean checkType ( String input ) { String [ ] temp = input . split ( "<seq2seq4repair_space>" ) ; String head = temp [ 0 ] ; <START_BUG> Boolean type = ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( head . equals ( "add" ) ) || ( head . equals ( "edit" ) ) ) || ( head . equals ( "delete" ) ) ) || ( head . equals ( "search" ) ) ) || ( head . equals ( "filter" ) ) ) || ( head . equals ( "sort" ) ) ) || ( head . equals ( "label" ) ) ) || ( head . equals ( "postpone" ) ) ) || ( head . equals ( "forward" ) ) ) || ( head . equals ( "add-remind" ) ) ) || ( head . equals ( "remind" ) ) ) || ( head . equals ( "add-remind-bef" ) ) ) || ( head . equals ( "remind-bef" ) ) ) || ( head . equals ( "remove-remind" ) ) ) || ( head . equals ( "done" ) ) ) || ( head . equals ( "undone" ) ) ) || ( head . equals ( "exit" ) ) ) || ( head . equals ( "undo" ) ) ) || ( head . equals ( "redo" ) ) ) || ( head . equals ( "reset" ) ) ) || ( head . equals ( "tab" ) ) ) || ( head . equals ( "set-recurring" ) ) ) || ( head . equals ( "remove-recurring" ) ) ) || ( head . equals ( "create" ) ) ) || ( head . equals ( "schedule" ) ) ) || ( head . equals ( "cancel" ) ) ) || ( head . equals ( "remove" ) ) ) || ( head . equals ( "modify" ) ) ) || ( head . equals ( "change" ) ) ) || ( head . equals ( "replace" ) ) ) || ( head . equals ( "archive" ) ) ) || ( head . equals ( "complete" ) ) ) || ( head . equals ( "finish" ) ) ) || ( head . equals ( "shelf" ) ) ) || ( head . equals ( "unarchive" ) ) ) || ( head . equals ( "incomplete" ) ) ) || ( head . equals ( "unfinish" ) ) ) || ( head . equals ( "unshelf" ) ) ) || ( head . equals ( "delay" ) ) ) || ( head . equals ( "advance" ) ) ) || ( head . equals ( "categorize" ) ) ) || ( head . equals ( "tag" ) ) ) || ( head . equals ( "load" ) ) ) || ( head . equals ( "open" ) ) ) || ( head . equals ( "save" ) ) ) || ( head . equals ( "help" ) ) ; <END_BUG> return type ; } No newline ; at end ; of file ; }

Fix:
Boolean type = ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( head . equals ( "add" ) ) || ( head . equals ( "edit" ) ) ) || ( head . equals ( "delete" ) ) ) || ( head . equals ( "search" ) ) ) || ( head . equals ( "filter" ) ) ) || ( head . equals ( "sort" ) ) ) || ( head . equals ( "label" ) ) ) || ( head . equals ( "postpone" ) ) ) || ( head . equals ( "forward" ) ) ) || ( head . equals ( "add-remind" ) ) ) || ( head . equals ( "remind" ) ) ) || ( head . equals ( "add-remind-bef" ) ) ) || ( head . equals ( "remind-bef" ) ) ) || ( head . equals ( "remove-remind" ) ) ) || ( head . equals ( "done" ) ) ) || ( head . equals ( "undone" ) ) ) || ( head . equals ( "exit" ) ) ) || ( head . equals ( "undo" ) ) ) || ( head . equals ( "redo" ) ) ) || ( head . equals ( "reset" ) ) ) || ( head . equals ( "tab" ) ) ) || ( head . equals ( "set-recurring" ) ) ) || ( head . equals ( "remove-recurring" ) ) ) || ( head . equals ( "create" ) ) ) || ( head . equals ( "schedule" ) ) ) || ( head . equals ( "cancel" ) ) ) || ( head . equals ( "remove" ) ) ) || ( head . equals ( "modify" ) ) ) || ( head . equals ( "change" ) ) ) || ( head . equals ( "replace" ) ) ) || ( head . equals ( "archive" ) ) ) || ( head . equals ( "complete" ) ) ) || ( head . equals ( "finish" ) ) ) || ( head . equals ( "shelf" ) ) ) || ( head . equals ( "unarchive" ) ) ) || ( head . equals ( "incomplete" ) ) ) || ( head . equals ( "unfinish" ) ) ) || ( head . equals ( "unshelf" ) ) ) || ( head . equals ( "delay" ) ) ) || ( head . equals ( "advance" ) ) ) || ( head . equals ( "categorize" ) ) ) || ( head . equals ( "tag" ) ) ) || ( head . equals ( "load" ) ) ) || ( head . equals ( "open" ) ) ) || ( head . equals ( "save" ) ) ) || ( head . equals ( "help" ) ) ) || ( head . equals ( "clean" ) ) ;